Solve using the quadratic formula.7t2+t−5=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.t=_____ or t=_____
Q. Solve using the quadratic formula.7t2+t−5=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.t=_____ or t=_____
Identify Coefficients: Identify the coefficients of the quadratic equation.The quadratic equation is in the form at2+bt+c=0. For the equation 7t2+t−5=0, the coefficients are:a=7, b=1, and c=−5.
Write Quadratic Formula: Write down the quadratic formula.The quadratic formula is t=2a−b±b2−4ac.
Substitute into Formula: Substitute the coefficients into the quadratic formula.t=2(7)−(1)±(1)2−4(7)(−5)t=14−1±1+140t=14−1±141
Simplify and Calculate Discriminant: Simplify under the square root and calculate the discriminant. 141 is an irrational number, so we will leave it under the square root.
Calculate Possible Values: Calculate the two possible values for t.t=14−1+141 or t=14−1−141
Simplify Fractions: Simplify the fractions if possible.The fractions cannot be simplified further, so we will leave them as is.
Round to Nearest Hundredth: Round the decimal values to the nearest hundredth if necessary.Since the question asks for integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth, we will provide the solutions in the form of improper fractions.t=14−1+141 or t=14−1−141
More problems from Solve a quadratic equation using the quadratic formula